Flask with a cap



FIG. 1 is a front view of the design of flask with a cap. A back view, right and left side views are identical.

FIG. 2 is a bottom view of the design thereof;

FIG. 3 is a top view of the design thereof;

FIG. 4 is a front-top perspective view of the design thereof;

FIG. 5 is a front-bottom perspective view of the design thereof;

FIG. 6 is a partial cross sectional view of the design thereof, taken along section line 6—6 in FIG. 2; and,

FIG. 7 is an exploded perspective view of the design thereof. 

The ornamental design for a flask with a cap, as shown and described. 